The Aqua TROLL^® 200 Instrument measures and logs conductivity, temperature, and water level/pressure. Conductivity measurements can be used to characterize water quality changes relative to a baseline or to estimate the concentration of contaminants.

Rugged Design

• Titanium housing safeguards against corrosion.
• Sealed to withstand pressures up to 500 psi.
  
  

Extended Deployments

• Typical battery life is 5 years or 200,000 readings. External batteries, solar power, or external 8-36 VDC options are also available.
• TROLL^® Shield Antifouling System reduces biofouling and increases deployment times.
  
  

Accurate Results

• Dynamic density compensation delivers superior water level accuracy in environments where salinity values vary due to mixing, rainfall, or tides.
• Instruments are factory-calibrated and validated with NIST^®-traceable standards.

Flexible Communications

• SCADA and telemetry-ready units include built-in Modbus/RS485, SDI-12, and 4-20 mA output.
• Easily connects to RuggedReader^® Handheld PC, laptop, TROLL^® Link Telemetry System, or Con TROLL^® PRO System.
  
  

Simplified Setup and Data Acquisition

• Win-Situ^® software simplifies setup and automates site management.
• Standard logging modes include linear, linear average, and event testing¹ with logging rates² as fast as 1/sec.
  
  

Applications

• Aquifer storage and recovery
• Discharge monitoring
• Estuary and wetland studies
• Mine water management
• Recovery water monitoring at hydraulic fracturing sites
• Remediation projects
• Saltwater intrusion monitoring
• Storm surge analysis
• Tracer studies
  
  

¹External power supply or battery pack required when using event testing and is recommended when using linear average testing.
²See specifications for specific logging rates using linear, linear average, and event testing.